Testimonial: "Thanks, but why does it only blow out when the heater gets hot? Could it be water somewhere in the line? At any rate, I will indeed get the propane company to come take a look. Thanks again,"

gas under pressure freezes at the point of expansion so at the jet it will be relatively cold gas does carry a percentage of water vapor so it is possible that at or before the jet in the line there could be ice forming and restricting the gas flow discuss it with the gas man an example of what I am talking about , many vehicle air conditions for a period of time actually used lpg ( propane) as the active cooling agent but it was phased out because of the vehicle fire risk when the condenser was ruptured and the gas was allowed to hit the hot exhaust systemgas under pressure freezes at the point of expansion so at the jet it will be relatively cold
gas does carry a percentage of water vapor so it is possible that at or before the jet in the line there could be ice forming and restricting the gas flow
discuss it with the gas man
an example of what I am talking about , many vehicle air conditions for a period of time actually used lpg ( propane) as the active cooling agent but it was phased out because of the vehicle fire risk when the condenser was ruptured and the gas was allowed to hit the hot exhaust system

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Related Questions:

I would clean the pilot assembly first before replacing parts. Alllot of times the pilot will stay lit with just the pilot on but will go out with the main burner on. The reason is that with the main burner on there is a draft that pulls the pilot flame away from the thermocouple.

Make Sure Pilot Flame Is Long and Blue and hitting Thermocouple Head Good---If Thermocouple Head Is Too Short (from wear) Check Length and Configuration and Purchase New One From Hardware Store Or Related (like home depot) IF ALL LOOK OK, CHECK FOR A SWIFT AIR DRAFT (that will blow out pilot) My Dog Walks By And BLOWS Mine Out.

Your pilot flame should be blue with a small yellow tip, and it should cover the thermocouple (a small rod in front of the pilot light). If the flame is too small and doesn't cover the thermocouple, it may be adjusted too low, or you have low gas pressure or you have a leak in your gas line coming in to the heater. If the flame looks like a lazy yellow flame, you are probably not getting enough air to the flame. Check that your air openings around the pilot are not clogged up. If the flame looks like a waving blue flame then you probably have excessive draft at the pilot. If the pilot flame looks good and covers the thermocouple, then the thermocouple might be bad. Best of luck. I hope I have helped.

I would shut off valve to heater and remove it from propane bottle. Carefully clean with soft bristle brush and blow out with medium pressure air. Reinstall and light heater and see if flame quality has improved. Often dirt,dust,and lint can build up in burner and cause fuel to not get good enough air to fully combust. Hope this helps you.Thanks

Hello,Here's a few things to check. When you light the pilot, is it a strong blue pilot flame, a weak blue flame or a lazy yellow flame? Is it heating the thermocouple enough to make it red hot after a few minutes? If the pilot is small blue or lazy yellow flame, it may be dirty and need cleaned. When the burner lights, the weak pilot flame may diminish causing the
thermocouple to cool off enough to shut down the main burner. Clean the dirty pilot orifice by using a can of compressed air with
attached straw. (The same canned air you use to clean computer keyboards) Blow it into the pilot assembly where the pilot flame burns out from and blow thru the air holes on the side, if applicable. You might also check the thermocouple itself to make sure the tip is not partially burn't off. It should be a smooth, rounded tip. Replace the thermocouple if cleaning the pilot orifice doesn't solve the problem. Douglas

A can of air, vacuum and a long thin brush. Blow out any debris in burners and at the pilot assembly while running the vac. Brush all parts you can get too. Unscrew the pilot line from gas valve and blow in tube with can of air. Fire up heater and check for CO.

make sure you have the gas valve knob on turned to pilot while pressing that down while pushing the spark it should light or it is tripped on a safety like rollout switch or oxygen depletion sensor if equipped which all ventless heaters are